Advent calendar 2017

Archive

Show me a random puzzle

Tags

differentiation wordplay triangle numbers quadrilaterals consecutive integers lines consecutive numbers range sums irreducible numbers 3d shapes folding tube maps books gerrymandering chess determinants hexagons mean calculus colouring decahedra products rectangles complex numbers perfect numbers time geometric means circles shapes square numbers balancing expansions triangles clocks factorials unit fractions perimeter addition money averages sport cryptic crossnumbers medians ave polynomials geometric mean angles sequences prime factors integers the only crossnumber symmetry speed percentages doubling division digits coins digital clocks chocolate taxicab geometry axes chalkdust crossnumber functions proportion indices tiling volume numbers cubics powers means palindromes dice square roots graphs fractions cards dominos 2d shapes bases logic digital products matrices remainders scales geometry number even numbers odd numbers area factors pascal's triangle surds people maths advent cube numbers quadratics planes spheres cryptic clues trigonometry regular shapes shape coordinates binary sum to infinity tangents squares parabolas prime numbers albgebra routes square grids neighbours elections crosswords crossnumbers probability menace dodecagons dates tournaments median polygons games integration rugby combinatorics multiplication algebra star numbers arrows sets christmas partitions multiples grids ellipses floors pentagons lists xor probabilty multiplaction squares